She was not. There are no real sources for that. There was one guy on the Internet who suggested it as a possibility, and then some IMDb editor mistook that suggestion for a fact and entered it there as such, and other sites just uncritically repeated what IMDb said without doing any basic fact-checking first. But it's definitely not her. Vetri's face is distinctly different from the actress who played Isis; her features are softer, her eye color is different, and she has a dark speck on the white of one of her eyes that "Isis" did not have.

__________________Christopher L. Bennett Homepage -- Site update 11/16/14 including annotations for "The Caress of a Butterfly's Wing" and overview for DTI: The Collectors